Heading on a national parks road trip this summer? There’s nothing better to enhance your experience than a little bit of background knowledge. The parks are full of rich history, geologic and ecologic wonders, and some wacky lore. Break out these fun facts about America’s best idea on the trail or around the campfire, and delight, surprise, and impress your family and adventure buddies. 1. You probably know that there are 63 National Parks, but did you know there are 423 national park sites across the country? That includes national monuments, lakeshores, battlefields, recreation areas, historic sites, and others—including the White House.